It is a parallelogram!
Also you haven't really put any other info...
Answer:
1. $109.20 2. $46.80
Step-by-step explanation:
Doing the math, we find that 30% of 156 (138+18) is 46.80, which answers the second part of this problem. Plugging this value into the first part of the equation gives us what Stefan originally paid.
Good luck! Hope this helps!
From the two right triangles, you can write the following equations using the Pythagorean theorem. Let's call that shared leg in the middle "y"
y^2 + b^2 = a^2
y^2 + c^2 = x^2
y^2 + b^2 = a^2
re-write this to get "y" alone for substitution.
y^2 = a^2 - b^2
substitute (a^2 - b^2) for y^2 in the other equation. y^2 + c^2 = x^2
a^2 - b^2 + c^2 = x^2
Now put in the values given for a,b,c to solve for x
(7.1)^2 - (5.6)^2 + (5.7)^2 = x^2
51.54 = x^2
square root
7.2 = x
Answer:3
Step-by-step explanation:
19 + 3=22
8+6/2=17-5
We can start by reducing the fraction using basic division.
Remember, numerator divided by denominator.
6 \ 2 = 3.
Rewrite the equation-
8+3=17-5
It doesn’t matter which side of the equal sign you start with, but in this case I started with the right hand.
8+3= 11
Rewrite-
11=17-5
Now subtract.
17-5=12
Write the equality.
11=12.
This is false.
11≠12.
